<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title border-topbottom">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper">
                        <div class="button">
                            <!-- {{this.$store.state.city}} -->
                            {{this.currentCity}}
                        </div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">热门城市</div>
                <div class="button-list">
                    <div class="button-wrapper" v-for='item of hot' :key='item.id' @click='handleClick(item.name)'>
                        <div class="button">{{item.name}}</div>
                    </div>
                </div>
            </div>
            <div class="area" v-for='(item,key) of cities' :key='key' :ref='key'>
                <div class="title border-topbottom">{{key}}</div>
                <div class="item-list">
                    <div class="item border-bottom" v-for="innerItem of item" :key='innerItem.id' @click='handleClick(innerItem.name)'>{{innerItem.name}}</div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
import { mapState, mapMutations } from 'vuex'
export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  methods: {
    handleClick (city) {
    //   this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  },
  computed: {
    ...mapState({
      currentCity: 'city'
    })
  }
}
</script>

<style lang='stylus' scoped>
    @import '~styles/varibles.styl'
    .title
        line-height .54rem
        background #eeeeee
        padding-left .2rem
        color #666666
        font-size .26rem
    .border-topbottom
        &:before
            border-color #cccccc
        &:after
            border-color #cccccc
    .border-bottom
        &:before
            border-color #cccccc
    .list
        overflow hidden
        position absolute
        top 1.58rem
        left 0
        right 0
        bottom 0
        .button-list
            padding .1rem .6rem .1rem .1rem
            overflow hidden
            .button-wrapper
                width 33.33%
                float left
                .button
                    text-align center
                    padding .1rem 0
                    margin .1rem .1rem
                    border .02rem solid #cccccc
                    border-radius .06rem
        .item-list
            .item
                line-height .76rem
                color #666666
                padding-left .2rem

</style>
